Funny thing going on with my R40. I find that some commands did not save during my initial setup so I "relearn". What's weird is that after relearning, other command(s) would get mysteriously erased somewhere in the device. Happens randomly but mostly on the cursor pad. I'm not imagining it because I write them down. Most times it would take 5-6 tries to get all the commands saved. Memory is only at 50% with only 4 components. Anyone else run into this???
One thing about the MX-450 that I really appreciate is its ability to learn. It always accepts anything that I throw at it. It has never rejected a learned command to date and holds on to the information.
My previous remote, the URC-300 was an excellent remote but it was extremely sensitive to learning from some other remotes. This included the angle that you held the original remote. To put it simply, the URC-300 was a pain in the a-s for learning commands. The MX-450 is actually a pleasure in the learning area.